May in Tulun averages a daily high of 16.9°C with nights around 2.8°C. Expect roughly 11.2 wet days totalling 34.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Tulun is May–August.
Based on TULUN, RS (5km), 1995–2024. 30 years of May data.